Which karaoke game for PS2 for DD10?

[Hidden_Mickey]

Hi,

I saw a commercial the other day for a karaoke game. I can't remember what it was, and when I tried to look it up on Amazon, there were a bunch! DD10 loves to sing, so this will be right up her ally from Santa. Does anyone have one of these games? Which one is best? There are American Idol editions, Singstar, Karaoke Revolution... So many options!

Thanks!